KR102545758B1 - Display apparatus and control method thereof - Google Patents

Abstract

A display device and a control method thereof are disclosed. A display device according to the present invention includes a sensing unit for detecting a state of the surrounding environment, an input unit for receiving a user command for switching contents, an output unit for outputting content corresponding to the user command, and the detected state of the surrounding environment when a user command is input. and a processor controlling an output unit to change and output at least one of screen brightness and audio output intensity of the second content corresponding to the user command based on at least one of the output information of the currently output first content. Accordingly, the display device may differently output at least one of video and audio of the content according to the state of the surrounding environment.

Description

Display apparatus and control method thereof {Display apparatus and control method thereof}

The present invention relates to a display device and method, and more particularly, to a display device and method for differently changing and outputting content according to a state of a surrounding environment.

The display device selects a channel corresponding to the channel change command according to a user's channel change command, and outputs video and audio for contents of the selected channel. That is, a conventional display device outputs the content of a selected channel based on preset output setting information regardless of surrounding environment conditions.

Accordingly, when changing a channel, the user watches the content of the channel in a state in which the output intensity of the content of the switched channel is not predicted, and thus suffers inconvenience due to viewing until the output intensity of the content is adapted.

For example, when switching channels in a dark surrounding environment and displaying a content image on a screen that is relatively brighter than the content of the previous channel, the user's eyes cannot adapt to such screen brightness for a certain period of time, so that the user's Fatigue can be easily induced.

The present invention has been devised to solve the above problems, and an object of the present invention is to differently output at least one of video and audio of content in consideration of the surrounding environment state in a display device.

In order to achieve the above object, a display device according to an embodiment of the present invention includes a sensing unit for detecting a state of the surrounding environment, an input unit for receiving a user command for content switching, and an output for outputting content corresponding to the user command. and when the user command is input, at least one of screen brightness and audio output intensity of the second content corresponding to the user command based on at least one of the sensed surrounding environment state and currently output output information of the first content. and a processor controlling the output unit to change and output.

The sensor includes an illuminance sensor configured to detect an illuminance of the surrounding environment, and the processor determines the brightness included in the output information of the first content when the detected illuminance value of the ambient environment is less than a preset threshold. Based on the information, the output unit may be controlled to change the screen brightness of the second content from the first level to the second level and output the image of the second content.

The sensor may include a volume sensor for detecting sound of a surrounding environment input through a microphone, and the processor may determine, when a volume value of the detected sound of the surrounding environment is less than a preset threshold, the first Based on audio information included in the output information of the content, the output unit may be controlled to output the audio of the content by changing the audio output intensity of the second content from the first level to the second level.

And, the processor maintains the screen brightness at the second level and outputs the image of the second content when the brightness of the image of the second content is less than a predetermined threshold value based on the image information of the second content. The output unit can be controlled to do so.

In addition, the processor maintains the second audio output intensity at the second level when the audio intensity of the second content is less than a predetermined threshold value based on the audio information of the second content, so that the second content The output unit may be controlled to output audio.

The processor may control the output unit to change and output at least one of the screen brightness and audio output intensity within a predetermined threshold time.

In addition, the first level is an output level for outputting the screen brightness and the audio output intensity to a predetermined minimum value, and the second level is an output level for outputting the screen brightness and the audio output intensity to the screen brightness of the first content. and an output level for outputting with an audio output intensity.

The first level is an output level for outputting the screen brightness and the audio output intensity to a predetermined minimum value, and the second level is based on the screen brightness and the audio output intensity based on the surrounding environment. It may be set information.

In addition, when a user command for switching to another content is input within a preset threshold time after switching from the first content to the second content, the processor selects among the video and audio of the content corresponding to the user command. The output unit may be controlled to change at least one output level to a preset first level and output the output.

Further, the processor, when a power-on command for the display device is input, the content output after the power-on based on at least one of the surrounding environment state and output information of the content output before the power-on command is input. The output unit may be controlled to change and output at least one of screen brightness and audio output intensity.

Meanwhile, according to another embodiment of the present invention, a control method of a display device includes the steps of detecting a state of the surrounding environment, and when a user command for switching contents is input, the state of the detected surrounding environment and the currently output first content Changing at least one of screen brightness and audio output intensity of second content corresponding to the user command based on at least one of the output information, and outputting second content having at least one of the screen brightness and audio output intensity changed. Include steps.

In the detecting, if the detected illuminance of the surrounding environment is detected, and in the changing, if the detected illuminance value of the surrounding environment is less than a preset threshold, the brightness information included in the output information of the first content. It is possible to change the screen brightness of the second kernel from the first level brightness to the second level brightness based on .

In addition, in the detecting step, the sound of the surrounding environment is sensed, and in the changing step, if the volume value of the detected sound of the surrounding environment is less than a predetermined threshold value, it is included in the output information of the first content. Based on the received audio information, the audio output intensity of the second content may be changed from the first level to the second level.

In the changing, the screen brightness may be maintained at the second level when the brightness of the second content is less than a predetermined threshold based on the image information of the second content.

The changing may include maintaining the audio output intensity at the second level when the audio intensity of the second content is less than a predetermined threshold based on the audio information of the second content.

In the changing, at least one of the screen brightness and audio output intensity may be changed within a preset threshold time.

In addition, the first level is an output level for outputting the screen brightness and the audio output intensity to a predetermined minimum value, and the second level is an output level for outputting the screen brightness and the audio output intensity to the screen brightness of the first content. and an output level for outputting with an audio output intensity.

The first level is an output level for outputting the screen brightness and the audio output intensity to a predetermined minimum value, and the second level is based on the screen brightness and the audio output intensity based on the surrounding environment. It may be set information.

In addition, the changing step may include, after switching from the first content to the second content, when a user command for switching to another content is input within a predetermined threshold time, the image of the content corresponding to the user command and An output level of at least one of the audio may be changed to a preset first level.

And, the step of receiving a power-on command for the display device is further included, and the step of changing, when the power-on command is input, the state of the surrounding environment and the contents output before the power-on command is input. Based on at least one of the output information, at least one of screen brightness and audio output intensity of the content output after the power is turned on may be changed.

As described above, according to various embodiments of the present invention, the display device according to the present invention may output at least one of video and audio of content differently according to the state of the surrounding environment.

1 is a schematic block diagram of a display device according to an embodiment of the present invention;
2 is a detailed block diagram of a broadcast receiving device according to an embodiment of the present invention;
3 is an example of outputting content of a channel switched in a conventional display device;
4 is a first exemplary view of outputting content according to a state of the surrounding environment in a display device according to an embodiment of the present invention;
5 is a second exemplary view of outputting content according to a state of the surrounding environment in a display device according to an embodiment of the present invention;
6 is a third exemplary view of outputting content according to a state of the surrounding environment in a display device according to an embodiment of the present invention;
7 is a fourth example of outputting content according to a state of the surrounding environment in a display device according to an embodiment of the present invention;
8 is an example of differently changing the output intensity of content according to the surrounding environment state in the display device according to an embodiment of the present invention;
9 is a flowchart of a control method of a display device according to an embodiment of the present invention;
10 is a flowchart of a method of outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

Prior to a detailed description of the present invention, the description method of the present specification and drawings will be described.

First, terms used in the present specification and claims are general terms in consideration of functions in various embodiments of the present invention. However, these terms may vary depending on the intention of a technician working in the field, legal or technical interpretation, and the emergence of new technologies. In addition, some terms are arbitrarily selected by the applicant. These terms may be interpreted as the meanings defined in this specification, and if there is no specific term definition, they may be interpreted based on the overall content of this specification and common technical knowledge in the art.

In addition, the same reference numerals or numerals in each drawing attached to this specification indicate parts or components that perform substantially the same function. For convenience of description and understanding, the same reference numerals or symbols are used in different embodiments. That is, even if all components having the same reference numerals are shown in a plurality of drawings, the plurality of drawings do not mean one embodiment.

Also, in the present specification and claims, terms including ordinal numbers such as “first” and “second” may be used to distinguish between elements. These ordinal numbers are used to distinguish the same or similar components from each other, and the meaning of the term should not be construed as being limited due to the use of these ordinal numbers. For example, the order of use or arrangement of elements associated with such an ordinal number should not be limited by the number. If necessary, each ordinal number may be used interchangeably.

In this specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprise" or "consist of" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other It should be understood that the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In the embodiments of the present invention, terms such as "module", "unit", and "part" are terms used to refer to components that perform at least one function or operation, and these components are hardware or software. It may be implemented or implemented as a combination of hardware and software. In addition, a plurality of "modules", "units", "parts", etc. are integrated into at least one module or chip, except for cases where each of them needs to be implemented with separate specific hardware, so that at least one processor (not shown).

Also, in an embodiment of the present invention, when a part is said to be connected to another part, this includes not only a direct connection but also an indirect connection through another medium. In addition, the meaning that a certain part includes a certain component means that it may further include other components without excluding other components unless otherwise specified.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a display device according to an embodiment of the present invention.

As shown in FIG. 1 , the display device includes a sensing unit 110 , an input unit 120 , an output unit 130 and a processor 140 .

The sensing unit 110 senses a state of the surrounding environment. Here, the surrounding environment state may be at least one of illumination intensity of the surrounding environment and sound generated in the surrounding environment.

The input unit 120 receives a user command input from an input means such as a manipulation unit (not shown) or a touch panel (not shown) provided in the display device, and transmits it to the processor 140 . Here, the user command may be a channel change command, a content change command, a play command for pre-stored content, and a control command for controlling the operation of the display device.

The output unit 130 outputs content corresponding to a user command. Here, the content may include at least one of audio and video data. Accordingly, the output unit 130 may output broadcast content including signal-processed audio and video data in an outputtable form.

When a user command for content switching is input through the input unit 120, the processor 140 outputs the surrounding environment state detected by the sensor 110 and output information of currently output content (hereinafter referred to as first content). Accordingly, the output unit 130 is controlled to output the second content by gradually changing the screen brightness and audio output intensity of the content corresponding to the user command (hereinafter referred to as the second content). Accordingly, the output unit 130 may gradually change and output the audio volume and screen brightness of the image of the second content corresponding to the user command.

Specifically, as shown in FIG. 2 to be described later, the sensor 110 detects the sound of the surrounding environment input through the ambient light sensor 111 and a microphone (not shown) to detect the ambient light intensity. A sensing unit 112 may be included.

Accordingly, when a user command for switching content is input, the processor 140 outputs information of the surrounding environment state detected through at least one of the illuminance sensor 111 and the volume sensor 112 and the first content currently being output. Based on at least one of the above, the output unit 130 may be controlled to gradually change and output at least one of the screen brightness and audio output intensity of the second content corresponding to the user command.

Here, the output information of the first content may be brightness information and audio information for video and audio of the first content.

However, the present invention is not limited thereto, and the processor 140 activates at least one of the illuminance sensor 111 and the volume sensor 112 when a control command such as a section jump for the first content currently being viewed is input. The output unit 130 may be controlled to output an image frame of a section corresponding to a user command by gradually changing at least one of screen brightness and audio output intensity according to the state of the surrounding environment sensed through the above.

According to an embodiment, if the illuminance value of the surrounding environment sensed by the illuminance sensor 111 is less than a preset threshold value, the processor 140 may perform based on brightness information included in output information of the first content currently being output. Accordingly, the output unit 130 may be controlled to output an image of the second content by changing the screen brightness of the second content corresponding to the user command from the first level to the second level.

Accordingly, the output unit 130 gradually changes the screen brightness from the first level to the second level corresponding to the brightness level of the first content image currently being output, and displays the second content image requested by the user. can do.

According to another embodiment, if the volume value of the sound of the surrounding environment sensed through the volume sensor 112 is less than a predetermined threshold value, the processor 140 includes the output information of the first content currently being output. Based on the audio information, the output unit 130 may be controlled to output the audio of the second content by changing the audio output intensity of the second content corresponding to the user command from the first level to the second level. .

Accordingly, the output unit 130 outputs the audio of the content requested by the user by gradually changing the audio output from the first level to the volume value of the second level corresponding to the output level of the audio of the first content currently being output. can

According to another embodiment, the ambient light intensity value detected through the ambient light sensor 111 is less than a predetermined threshold value, and the volume value of the sound of the ambient environment detected through the volume sensor 112 is the default value. It may be less than a set threshold. Here, each of the threshold values is a reference value for determining whether the ambient light intensity value and the sound volume value of the surrounding environment are equal to or greater than the reference value, and each threshold value is preferably set to a different value.

As such, if the illuminance value and the volume value of the surrounding environment are less than the predetermined threshold value, the processor 140 performs a first content corresponding to the user command based on the brightness information and audio information included in the output information of the first content currently being output. The output unit 130 changes the screen brightness of the video of the second content from the first level to the second level, and changes the audio output intensity of the second content audio from the first level to the second level and outputs the output. to control

Accordingly, the output unit 130 gradually changes the screen brightness from the first level to a second level corresponding to the brightness level of the first content image currently being output to display the second content image, and at the same time Audio of the second content may be output by gradually changing the audio output from the first level to a volume value of a second level corresponding to the output level of the audio of the first content currently being output.

According to another embodiment, the processor 140 maintains the screen brightness at the second level when the brightness of the image of the second content is less than a predetermined threshold value based on the image information of the second content requested by the user, thereby maintaining the image of the content. It is possible to control the output unit 130 to output.

Specifically, the illuminance value of the surrounding environment sensed through the illuminance sensor 111 may be less than a predetermined threshold value. In this case, as described above, the processor 140, prior to changing the screen brightness of the second content from the first level to the second level based on the output information of the first content currently being output, requests the user By analyzing image information of the second content, it is determined whether the brightness of the image of the second content is less than a preset threshold value. As a result of the determination, if the brightness of the image of the second content requested by the user is less than a predetermined threshold value, the processor 140 sets the screen brightness to a second level corresponding to the brightness level of the image of the first content currently being output. Controls the output unit 130 to output an image of.

Accordingly, the output unit 130 may output an image of the second content at a screen brightness of a second level corresponding to the brightness level of the image of the first content currently being displayed, regardless of the illumination of the surrounding environment.

According to another embodiment, if the audio intensity of the second content is less than a predetermined threshold based on the audio information of the second content requested by the user, the processor 140 sets the audio output intensity to the audio of the first content currently being output. The output unit 130 may be controlled to output the audio of the second content to a second level corresponding to the output level of . Specifically, the volume value of the sound of the surrounding environment sensed through the sound sensor 112 may be less than a predetermined threshold value. In this case, as described above, the processor 140 prior to changing the audio output intensity from the first level to the second level corresponding to the output level of the audio of the first content currently being output, prior to changing the volume of the audio output requested by the user. By analyzing the audio information of the second content, it is determined whether the audio output intensity of the second content is less than a predetermined threshold value. As a result of the determination, if the audio output intensity of the second content is less than the preset threshold, the processor 140 sets the audio output intensity to a second level corresponding to the output level of the audio of the first content currently being output. Controls the output unit 130 to output.

Accordingly, the output unit 130 may output the audio of the second content at a volume of a second level corresponding to the output level of the audio of the first content currently being output regardless of the sound of the surrounding environment.

Meanwhile, the above-described first and second levels may be set through the following embodiments.

According to an embodiment, the first level is an output level for outputting the screen brightness and audio output intensity to preset minimum values, and the second level is an output level for outputting the screen brightness and audio output intensity of the first content currently being output. It may be level information.

According to another embodiment, the first level is an output level for outputting the screen brightness and the audio output intensity to preset minimum values, and the second level is the screen brightness and the audio output intensity set based on the surrounding environment. may be information.

Meanwhile, the processor 140 may control the output unit 130 to change at least one of the screen brightness and the audio output intensity from the first level to the second level within a predetermined threshold time and output.

According to such a control command, the output unit 130 changes at least one of the screen brightness and the audio output intensity from the first level to the second level within a predetermined threshold time, so that at least one of the video and audio of the second content requested by the user You can print one.

On the other hand, the processor 140 determines whether or not a user command for switching to another content (hereinafter referred to as third content) is input within a predetermined threshold time after switching from the first content to the second content according to the user command. judge As a result of the determination, after switching from the first content to the second content, if a user command for channel switching to the third content is input within a predetermined threshold time, the processor 140 transmits at least one of video and audio of the third content. The output unit 130 is controlled to change the output level to a preset first level and output the output.

In a state in which at least one of video and audio of the third content is being output at the screen brightness or audio output intensity of the first level, the processor 140 switches to another content within a predetermined threshold time after the change to the third content. It is determined whether a user command is input.

As a result of the determination, after conversion to the third content, if a user command for switching to another content is not input within a preset threshold time, the processor 140 may increase the screen brightness or audio output intensity from the first level to the second level. The output unit 130 is controlled to gradually change and output the content. Here, the second level is an output level corresponding to the brightness level of the video and the output level of the audio included in the output information of the second content output before switching to the third content.

Accordingly, the output unit 130 may output the third content by gradually changing at least one of the screen brightness and the audio output intensity from the first level to the second level.

According to an additional aspect of the present invention, the processor 140, when a power-on command for the display device is input, after power-on, based on at least one of a surrounding environment state and output information of content output before the power-on command is input The output unit 130 may be controlled to gradually change at least one of the screen brightness and audio output intensity of the output content and output the content.

Specifically, when a power-on command for the display device is input, the processor 140 operates the sensing unit 110 in an active mode. Accordingly, the sensing unit 110 detects the surrounding environment state by switching the mode to the active mode. However, the present invention is not limited thereto, and when a power-on command for the display device is input, the processor 140 may operate the communication unit 160 to be described later in an active mode. Accordingly, the communication unit 160 may perform data communication with a peripheral terminal device (not shown) that detects a state of the surrounding environment and receive sensed information from the peripheral terminal device (not shown).

As such, when a state of the surrounding environment is sensed or received from a nearby terminal device (not shown), the processor 140 turns on the power on based on at least one of the state of the surrounding environment and output information of content output before a power-on command is input. The output unit 130 is controlled to gradually change the screen brightness and audio output intensity of the content to be output thereafter.

So far, operations of the sensing unit 110, the input unit 120, the output unit 130, and the processor 140 constituting the display device according to the present invention have been schematically described.

Hereinafter, the configuration of the broadcast receiving device 100 described above with reference to FIG. 2 will be described in more detail.

2 is a detailed block diagram of a broadcast receiving device according to an embodiment of the present invention.

As shown in FIG. 2 , the broadcast receiving device 100 includes a receiving unit 150, a communication unit ( 160), a signal processing unit 170, a photographing unit 180, and a storage unit 190 may be further included.

The receiving unit 150 receives content of a channel selected by a user from among a plurality of contents provided from a broadcasting server (not shown). Specifically, the receiving unit 150 selects a channel requested by a user through a tuner unit (not shown), and provides various contents such as terrestrial broadcasting content or cable broadcasting content provided by a broadcasting server (not shown) through the selected channel. can receive

The communication unit 160 performs wired or wireless communication with a content server (not shown) that provides content to receive content requested by a user or communicates with a remote control device (not shown) that controls the operation of a display device. to receive user commands. Here, the user command may be a channel change command, a play command for pre-stored content, and a control command for controlling the operation of the display device.

In addition, the communication unit 160 may perform data communication with a peripheral terminal device (not shown) to receive sensing information about a state of the surrounding environment sensed by the peripheral terminal device (not shown).

The communication unit 160 includes a short-distance wireless communication module 161 and a wireless communication module 162, High-Definition Multimedia Interface (HDMI), Universal Serial Bus (USB), Institute of Electrical and Electronic Engineers (IEEE) 1394, and the like. It may include a connector 163 including at least one of the wired communication modules of the.

The short-range wireless communication module 161 is a component that performs short-range communication wirelessly between a display device and a peripheral terminal device (not shown). The short-range wireless communication module 161 includes at least one of a Bluetooth module, an infrared data association (IrDA) module, a Near Field Communication (NFC) module, a WIFI module, and a Zigbee module. can include

The wireless communication module 162 is a module that is connected to an external network and performs communication according to a wireless communication protocol such as IEEE. In addition, the wireless communication module accesses a mobile communication network according to various mobile communication standards such as 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution) and performs communication. Further includes a mobile communication module You may.

As such, the communication unit 160 may be implemented by the above-described various short-distance communication methods, and may employ other communication technologies not mentioned in this specification as necessary.

Meanwhile, the connector 163 is a configuration that provides interfaces with various source devices such as USB 2.0, USB 3.0, HDMI, and IEEE 1394. The connector 163 may receive content data transmitted from a content providing server (not shown) through a wired cable connected to the connector 163 or may transmit previously stored content data to an external recording medium. Also, the connector 163 may receive power from a power source through a wired cable physically connected to the connector 163 .

The signal processing unit 170 may be a component for processing image data and audio data of contents received from the outside or stored in the storage unit 190 according to a control command of the processor 140 . Specifically, the signal processing unit 170 may perform various image processing such as decoding, scaling, noise filtering, frame rate conversion, and resolution conversion on image data included in content. In addition, the signal processing unit 170 may perform various audio signal processing such as decoding, amplification, and noise filtering on audio data included in content.

The photographing unit 180 captures a still image or a moving picture according to a user command. Therefore, as described above, the processor 140 determines not only the state of the surrounding environment sensed through the sensor 110 but also the state of the surrounding environment from the image captured through the photographing unit 180, and determines the state of the surrounding environment according to the determined result. Based on this, the output unit 130 may be controlled to output content by gradually changing screen brightness and audio output intensity.

Meanwhile, as described above, the sensing unit 110 for detecting the surrounding environment includes an illuminance sensing unit 111 and a volume sensing unit 112 . The illuminance sensor 111 detects the ambient light intensity, and the volume sensor 112 detects sound of the surrounding environment input through a microphone (not shown). The sensor 110 that senses the ambient light and sound through the illuminance sensor 111 and the volume sensor 112 may detect various operating states of the display device and user interaction. Specifically, when the display device is a portable device such as a smart phone, the sensing unit 110 uses at least one of various sensors such as a geomagnetic sensor, a gyro sensor, and an acceleration sensor to detect rotational motion or a direction of gravity based on the user's direction. The tilt of the display device being held may be detected, and the processor 140 may perform a control operation intended by the user based on the tilt sensed through the sensor 11 .

Meanwhile, as described above, the input unit 120 for receiving a user command includes a microphone 121, a manipulation unit 122, and a touch input unit 123.

The microphone 121 receives an audio signal such as a sound generated in the surrounding environment or a user's spoken voice, and outputs the input audio signal by dividing it into frames of predetermined time units. Accordingly, the volume detector 112 may analyze each frame constituting the audio signal output from the microphone 121 to calculate the volume value of the sound generated in the surrounding environment.

The control unit 122 can be implemented as a keypad equipped with various function keys, numeric keys, special keys, character keys, etc., and the touch input unit 123 has a display unit 131 to be described later in the form of a touch screen. When implemented, it may be implemented as a touch pad forming a mutual layer structure with the display unit 131 . In this case, the touch input unit 123 may receive a touch command for an icon displayed through the display unit 131 to be described later.

Meanwhile, as described above, the output unit 130 outputting content corresponding to a user command includes a display unit 131 and an audio output unit 132 . The display unit 131 displays an image of content corresponding to a user command, and the audio output unit 132 outputs audio of the corresponding content in the form of audible sound through a speaker (not shown).

The display unit 131 that displays an image of content may be implemented as a Liquid Crystal Display (LCD), Organic Light Emitting Display (OLED), or Plasma Display Panel (PDP). can In particular, the display unit 131 may be implemented in the form of a touch screen forming a mutual layer structure together with the touch input unit 123 .

As described above, the processor 140 outputs the screen brightness and audio of the second content requested by the user based on at least one of the surrounding environment state sensed through the sensor 110 and output information of the first content currently being output. The output unit 130 may be controlled to gradually change and output an output level of at least one of the intensities.

According to such a control command, the display unit 131 gradually changes the screen brightness from the first level to the second level corresponding to the brightness level of the first content currently being displayed, so that the second content requested by the user is displayed. of can be displayed. Then, the audio output unit 132 gradually changes the audio output intensity from the first level to the second level corresponding to the audio output level of the first content currently being output, and transmits the audio of the second content requested by the user to a speaker ( Not shown) can be output in the form of audible sound.

The storage unit 190 may store an analysis module for gradually changing at least one of screen brightness and audio output intensity by analyzing the surrounding environment. Accordingly, the processor 140 gradually changes the screen brightness and audio output intensity according to the state of the environment detected by the sensor 110 using the analysis module stored in the storage unit 190 to output the content requested by the user. The output unit 130 may be controlled.

The storage unit 190 for storing such an analysis module includes an operating system program for controlling the operation of the display device and an application program that is managed by the operating system and performs the operation of the display device using resources of the operating system and provides a user interface. can be saved

Here, the operating system may be a program that is read from the storage unit 190 and compiled to operate each component of the display device when the display device is turned on. Then, the application program is read from the storage unit 190 by the operating system according to a user's execution command, converted into an executable form, and performs various operations. In addition, the storage unit 190 may store various multimedia data processed by the processor 140, content data, and data received from external sources.

The storage unit 190 may be a ROM, a RAM, or a memory card (eg, an SD card or a memory stick) removable/mountable in a display device, a non-volatile memory, a volatile memory, a hard disk drive (HDD), ) or a solid state drive (SSD).

On the other hand, the above-described processor 140 may include a CPU 141, ROM 142, RAM 143 and GPU 145, CPU 141, ROM 142, RAM 143 and GPU 145) may be connected to each other via a bus.

The CPU 141 accesses the storage unit 190 and performs booting using an operating system program stored in the storage unit 190 . In addition, the CPU 141 performs various operations using various programs, contents, and data stored in the storage unit 190 .

The ROM 142 stores command sets for system booting and the like. When a turn-on command is input and power is supplied, the CPU 141 copies the OS stored in the storage 130 to the RAM 143 according to the command stored in the ROM 142, and executes the OS to boot the system. . When booting is completed, the CPU 141 copies various programs stored in the storage unit 190 to the RAM 143 and executes the programs copied to the RAM 143 to perform various operations.

The GPU 144 creates a display screen including various objects such as icons, images, text, and the like. Specifically, the GPU 144 calculates attribute values such as coordinate values, shape, size, color, etc. of each object to be displayed according to the layout of the screen based on the received control command, and selects the object based on the associated attribute value. Create display screens of various layouts including

Such a processor 140 may be implemented as a single-chip system (System-on-a-chip or System on chip, SOC, SoC) by combining the various components described above.

So far, each configuration of the display device according to the present invention has been described in detail. Hereinafter, an operation of outputting content requested by a user by gradually changing at least one of screen brightness and audio output intensity of the display device according to a state of the surrounding environment in the display device according to the present invention will be described in detail.

3 is an exemplary view of outputting content of a switched channel in a conventional display device.

3(a) is an exemplary view of performing channel switching to a channel corresponding to a user command in a conventional display device, and FIG. 3(b) shows video and audio content of a channel corresponding to a user command in a display device. It is an exemplary view showing the output change amount of at least one of

For example, if a command to change a channel is input while the image of the content 310 of the first channel is being displayed, the display device may display the image of the content 330 of the second channel corresponding to the command to change the channel. . At this time, the display device may display the standby screen 320 while the channel is switched from the first channel to the second channel.

That is, as shown in (b) of FIG. 3, the display device maintains the brightness of the second preset level during the first period 310' until the point in time T0 when the command to change the channel to the second channel is input. An image of the content 310 of the first channel may be displayed. And, when a command to switch the channel to the second channel is input, the display device has a second period from the time point at which the command to switch the channel to the second channel is input (T0) to the time point at which the channel is switched to the second channel (T1). After the standby screen 320 is displayed during (320'), the content image 330 of the second channel can be displayed during the third period (330') after the time point (T1) at which the channel is switched to the second channel. .

At this time, the display device sets the screen brightness of the content image 330 of the second channel to a preset level at the point of time T1 when the channel is switched to the second channel after the second period 320 of displaying the idle screen 320. Output after changing to 2 levels of brightness.

In this way, a conventional display device outputs a content image of a channel corresponding to a user's channel change command at a preset level of screen brightness in a dark environment. Therefore, when changing a channel, the user cannot adapt to the brightness of the screen for the content image of the changed channel, and thus may feel fatigue.

4 is a first exemplary diagram for outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

Figure 4 (a) is an exemplary view of performing channel switching to a channel corresponding to a user command in the display device according to the present invention, and Figure 4 (b) is an exemplary diagram corresponding to a user command according to the surrounding environment state in the display device It is an exemplary diagram showing the amount of change in the screen brightness of the video of the content of the channel.

For example, when a channel change command is input while the content 410 image of the first channel is being displayed, the display device analyzes the surrounding environment state sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device gradually changes the screen brightness of the image of the content 430 of the second channel corresponding to the channel change command and displays the screen brightness.

Specifically, as shown in (b) of FIG. 4, the display device has a second level of brightness set in advance during the first period 410' up to the point in time T0 when the command to change the channel to the second channel is input. It is possible to display the video of the content 410 of the first channel.

However, the present invention is not limited thereto, and the display device sets a level lower than the preset second level brightness when the image brightness of the content 410 is less than a preset threshold value based on the image information on the content 410 of the first channel. The image of the content 410 of the first channel can be displayed with a brightness of .

When a channel switching command to the second channel is input while the content 410 image of the first channel is being displayed, the display device analyzes the surrounding environment state sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device displays the image of the content 430 of the second channel during the third section 430' after the time point T1 at which the channel is switched to the second channel. The display can be displayed by gradually changing the brightness of the screen.

Meanwhile, the interval from the time point T0 when the channel change command is input to the time point T1 when the channel is switched to the second channel corresponding to the input channel change command is the second period 420', and the first channel It may be a section where the idle screen 420 occurs when the channel is switched to 2 channels.

Therefore, the display device sets the screen brightness of the content 430 image of the second channel to the first level at the point of time T1 when the channel is switched to the second channel after the second period 420' of displaying the standby screen 420. The brightness of the level is gradually changed to the brightness of the preset second level and then output. Specifically, the display device displays the channel-switched content 430 image of the second channel during the third period 430', when the channel is switched to the second channel (T1) and the preset threshold time ends. During (T2), the screen brightness is gradually changed from the first level to the second level to display the content 430 image of the second channel, and after the preset threshold time ends (T2), the second level The content 430 image of the second channel is displayed by maintaining the screen brightness at a brightness of . Here, the brightness of the second level may be the brightness of the output level corresponding to the brightness level of the image of the content 410 of the first channel before the channel is switched to the second channel.

As such, the display device according to the present invention adaptively changes and outputs the screen brightness of the content image of the channel corresponding to the user's channel change command according to the dark environment, so that the user can view the changed channel without additional fatigue. You can watch content videos.

5 is a second exemplary diagram for outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

Figure 5 (a) is an exemplary view of performing channel switching to a channel corresponding to a user command in the display device according to the present invention, and Figure 5 (b) is an exemplary diagram corresponding to a user command according to the surrounding environment state in the display device It is an example diagram showing the amount of change in the audio output intensity of the content of the channel.

For example, when a channel change command is input while audio of the content 510 of the first channel is being output, the display device analyzes the state of the surrounding environment sensed through the detector 110 . As a result of the analysis, if the volume value of the sound in the surrounding environment is less than the predetermined threshold value, the display device gradually changes and outputs the audio output intensity of the content 530 audio of the second channel corresponding to the channel change command.

Specifically, as shown in (b) of FIG. 5, the display device has a preset second level of audio during the first period 510' until the time T0 when the command to switch the channel to the second channel is input. Audio of the content 510 of the first channel may be output with the output intensity.

However, the present invention is not limited thereto, and the display device has an audio level lower than the second preset level when the audio intensity of the first channel is less than a preset threshold value based on the audio information of the content 510. Audio of the content 510 of the first channel may be output with the output intensity.

When a command to change a channel to the second channel is input while the audio of the content 510 of the first channel is being output, the display device analyzes the state of the surrounding environment sensed through the detector 110 . As a result of the analysis, if the volume value of the sound in the surrounding environment is less than the predetermined threshold value, the display device displays the contents 530 of the second channel during the third period 530' after the time point T1 at which the channel is switched to the second channel. The audio output strength of the audio is gradually changed and output.

Meanwhile, the section from the time point T0 when the channel change command is input to the time point T1 when the channel is switched to the second channel corresponding to the input channel change command is the second section 520', and the first channel When a channel is switched to 2 channels, it may be a section where the idle screen 520 occurs.

Therefore, the display device controls the audio output intensity of the content 530 audio of the second channel at the time point T1 when the channel is switched to the second channel after the second period 520' of displaying the standby screen 520. The first level is gradually changed to the preset second level and output. Specifically, in the display device, the time point at which the channel is switched to the second channel (T1) during the third period 530' of outputting the content 530 audio of the channel-switched second channel to the time point at which the predetermined threshold time ends During (T2), the audio size is gradually changed from the first level to the second level of the audio output intensity to output the content 530 audio of the second channel. The content 530 audio of the second channel is output while maintaining the audio output strength of 2 levels. Here, the audio output intensity of the second level may be the intensity of an output level corresponding to the audio output intensity at which the audio of the content 510 of the first channel is output before the channel is switched to the second channel.

In this way, the display device according to the present invention adaptively changes and outputs the audio output intensity of the content audio of the channel corresponding to the user's channel change command according to the level of sound generated in the surroundings, so that the user does not have any additional fatigue. You can listen to the content audio of the changed channel.

6 is a third exemplary diagram for outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

Figure 6 (a) is an exemplary view of performing channel switching to a channel corresponding to a user command in the display device according to the present invention, and Figure 6 (b) is an exemplary diagram corresponding to the user command according to the surrounding environment state It is an exemplary diagram showing the amount of change in the screen brightness of the video of the content of the channel.

For example, the display device may receive a continuous channel switching command while displaying the content 610 image of the first channel. Specifically, the display device may continuously receive channel switching commands for the second to fifth channels while the content 610 image of the first channel is being displayed. When such a channel switching command is input, the display device analyzes the state of the surrounding environment sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device gradually increases the screen brightness of the content 630 image of the fifth channel corresponding to the last input channel change command among consecutive channel change commands. Change and display.

Specifically, as shown in (b) of FIG. 6 , the display device sets the brightness of the first channel to a preset second level during the first period 610' until the time T0 when the first channel change command is input. The content 610 of the image can be displayed. Also, when a channel change command is input, the display device analyzes the surrounding environment state sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device switches the channel to the fifth channel corresponding to the last input channel change command among consecutive channel change commands. During the period 630', the screen brightness is gradually changed to display the content 630 image of the fifth channel.

On the other hand, the interval from the time point when the first channel change command is input (T0) to the time point when the channel is switched to the fifth channel corresponding to the last input channel change command (T1) is the second interval 620', It may be a section displaying the standby screen 620 including the content image of the fourth channel to the fourth channel and a black image generated when the channel is switched.

Therefore, the display device gradually increases the screen brightness from the preset first level to the second level at the time point T1 when the channel is switched to the fifth channel after the second period 620' of displaying the standby screen 620. After changing, the video of the content 630 of the fifth channel is displayed. Here, the brightness of the second level may be the brightness of the output level corresponding to the brightness level of the image of the content 610 of the first channel before the channel is switched to the fifth channel.

Specifically, the display device gradually changes the screen brightness from the first level to an intermediate level smaller than the preset second level during the interval from the time T1 at which the channel is switched to the fifth channel to the preset time T2. The content 630 image of the fifth channel is displayed. Here, the brightness of the second level may be the brightness of the output level corresponding to the brightness level of the image of the content 610 of the first channel before the channel is switched to the fifth channel.

Thereafter, the display device displays the content 630 image of the fifth channel by maintaining the screen brightness at an intermediate level for a preset period (T2 to T3). Here, the predetermined intervals T2 to T3 may be intervals for determining whether another channel switching command is input after a channel switching command is input to the fifth channel.

If another channel change command is input during the preset intervals T2 to T3, the display device may display an image of content corresponding to another channel change command at an intermediate level of screen brightness.

On the other hand, if another channel switching command is not input during the preset interval (T2 to T3), the display device gradually changes the screen brightness from the middle level to the preset second level during the preset interval (T3 to T4). , it is possible to display the content 630 image of the fifth channel while maintaining the screen brightness of the second level.

7 is a fourth exemplary diagram for outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

FIG. 7(a) is an exemplary diagram illustrating the amount of change in screen brightness of a content image of a channel corresponding to a user command according to a state of the surrounding environment in a display device according to the present invention, and FIG. It is an exemplary view showing the amount of change in audio output intensity of content audio of a channel corresponding to a user command according to environmental conditions.

Specifically, as shown in (a) of FIG. 7 , when a channel change command is input while the content image of the first channel is being displayed, the display device detects the state of the surrounding environment through the sensor 110. Analyze. As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device gradually changes and displays the screen brightness of the content image of the second channel corresponding to the channel change command.

More specifically, the display device sets a second channel previously set by the user based on image information about the contents of the first channel during the first period 710 until the point in time T0 when the command to change the channel to the second channel is input. A corresponding content image may be displayed at a level lower than the level.

When a channel switching command to the second channel is input while the content image of the first channel is being displayed, the display device analyzes the state of the surrounding environment sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the preset threshold, the display device gradually adjusts the screen brightness of the content image of the second channel during the third period 730 after the time point T1 at which the channel is switched to the second channel. You can change it to display.

At this time, the display device compares the image brightness of the corresponding content with a preset threshold based on the image information of the content of the second channel. If the comparison result is equal to or greater than the predetermined threshold value, the display device sets the screen brightness to a third level higher than the second level preset by the user.

Thereafter, the display device gradually changes the screen brightness from the first level to the third level during the period T1 to T2 of the third period 730 set by the user, displays the content image of the second channel, and displays the content image of the second channel, and the period T1 to T2. From the next section, the content image of the second channel is displayed at the third level of screen brightness.

On the other hand, if the image brightness acquired based on the image information on the content of the second channel is less than a preset threshold value, the display device displays the content image of the second channel at a screen brightness level corresponding to the image brightness of the corresponding content. can do.

Meanwhile, as shown in (b) of FIG. 7 , when a channel change command is input while content audio of the first channel is being output, the display device analyzes the state of the surrounding environment sensed through the sensor 110. do. As a result of the analysis, if the volume value of the sound of the surrounding environment is less than the preset threshold value, the display device gradually changes and outputs the audio output intensity of the content audio of the second channel corresponding to the channel change command.

More specifically, the display device sets a second channel preset by the user based on audio information about the contents of the first channel during the first period 710 until the time T0 when the command to change the channel to the second channel is input. Audio of the corresponding content may be output with an audio output intensity lower than the level.

When a command to change a channel to the second channel is input while the content audio of the first channel is being output, the display device analyzes the state of the surrounding environment sensed through the detector 110 . As a result of the analysis, if the volume value of the sound in the surrounding environment is less than the predetermined threshold value, the display device gradually changes the audio output intensity during the third section 730 after the time point T1 at which the channel is switched to the second channel. Content audio of the second channel may be output.

At this time, the display device compares the audio output strength of the audio of the corresponding content with a predetermined threshold based on the audio information of the content of the second channel. If the result of the comparison is equal to or greater than the preset threshold, the display device sets the audio output intensity to a third level higher than the second level preset by the user.

Thereafter, the display device gradually changes the audio output intensity from the first level to the third level during the period T1 to T2 of the third period 730 set by the user, outputs content audio of the second channel, and outputs content audio of the second channel from T1 to T2. Content audio of the second channel is output with the audio output intensity of the third level from the interval after the interval.

On the other hand, if the audio output intensity obtained based on the audio information on the content of the second channel is less than a predetermined threshold value, the display device outputs the content audio of the second channel at a level corresponding to the audio output intensity of the corresponding content. can

8 is an exemplary view of differently changing the output intensity of content according to a state of the surrounding environment in a display device according to an embodiment of the present invention.

As shown in (a) and (b) of FIG. 8 , the display device displays the first channel during the first period 810-1,810-2 until the point in time T0 when a command to change the channel to the second channel is input. The corresponding content image may be displayed at a screen brightness level lower than the second level previously set by the user based on the image information on the content.

Then, when a channel switching command for the second channel is input, the display device analyzes the surrounding environment state sensed through the detector 110 . As a result of the analysis, if the illuminance value of the surrounding environment is less than the predetermined threshold value, the display device displays the content image of the second channel during the third period (830-1,830-2) after the time point T1 at which the channel is switched to the second channel. The screen brightness is gradually changed and displayed.

Here, the third intervals 830-1 and 830-2 are level change intervals for changing the level of screen brightness for the content image, and the user may set different level change intervals.

As shown in (a) of FIG. 8, when the third period 830-1 is set as the first level change period, the display device sets the first level at the first level for a time corresponding to the first level change period. The content image of the second channel may be displayed by gradually changing the screen brightness in two levels.

Meanwhile, as shown in (b) of FIG. 8, when the third period 830-2 is set as the second level change period, the display device operates for a longer time than the first level change period of FIG. 8 (a). The content image of the second channel may be displayed by gradually changing the screen brightness from the first level to the preset second level.

On the other hand, as shown in (c) and (d) of FIG. 8, the display device displays the second channel during the first period (810-3, 810-4) until the point in time T0 when the command to change the channel to the second channel is input. Based on the audio information about the content of one channel, the corresponding content audio may be output with an audio output intensity lower than the second level preset by the user.

Then, when a channel switching command for the second channel is input, the display device analyzes the surrounding environment state sensed through the detector 110 . As a result of the analysis, if the volume value of the sound of the surrounding environment is less than the predetermined threshold value, the display device transmits the sound of the second channel during the third period (830-3,830-4) after the time point T1 at which the channel is switched to the second channel. The audio output intensity of the content audio is gradually changed and output.

Here, the third intervals 830 - 3 and 830 - 4 are level change intervals for changing the audio output strength of the content audio, and the user may set different level change intervals.

As shown in (c) of FIG. 8 , when the third period 830 - 3 is set as the third level change period, the display device sets a predetermined level at the first level for a time corresponding to the third level change period. Content audio of the second channel may be output by gradually changing the audio output strength at two levels.

Meanwhile, as shown in (d) of FIG. 8, when the third period 830-4 is set as the fourth level change period, the display device is longer than the third level change period as shown in (c) of FIG. Content audio of the second channel may be output by gradually changing the audio output intensity from the first level to the predetermined second level over time.

So far, an operation of stepwise changing and outputting the output strength of video and audio of contents of a switched channel when a channel is switched in a display device has been described in detail through various embodiments.

Hereinafter, a method of gradually changing and outputting the video and audio output intensities of the contents of the switched channel when changing channels in the display device according to the present invention will be described in detail.

9 is a flowchart of a control method of a display device according to an embodiment of the present invention.

As shown in FIG. 9 , when a power-on command is input, the display device activates the sensing unit and detects a state of the surrounding environment through the activated sensing unit (S910 and S920).

However, the present invention is not limited thereto, and when a power-on command is input, the display device may activate a communication unit and receive information about a state of the surrounding environment detected by the nearby terminal device from a nearby terminal device through the activated communication unit. there is.

Here, the surrounding environment state may be an illumination value of the surrounding environment detected through the illumination sensor and a volume value of the sound of the surrounding environment input through the microphone.

When such information on the surrounding environment state is detected or received from the peripheral terminal device, the display device outputs the content output after power-on based on at least one of the output information of the content output before power-on and the detected surrounding environment state. At least one of video and audio is gradually changed and output (S930, S940). That is, the display device gradually changes and outputs at least one of the screen brightness and audio output intensity of the content output after power-on based on at least one of the surrounding environment state and output information on the content output before power-on. .

While outputting content (hereinafter referred to as first content), the display device determines whether or not a content switching command is input, and if the content switching command is input, the display device performs the above-described steps S930 and S940 again to display the corresponding switching command. The output intensity of at least one of video and audio of the content (hereinafter, referred to as second content) is gradually changed based on at least one of output information of the first content currently being output and at least one of the surrounding environment state and then output (S950).

10 is a flowchart of a method of outputting content according to a state of a surrounding environment in a display device according to an embodiment of the present invention.

As shown in FIG. 10 , when a content switching command is input, the display device compares the illuminance value of the surrounding environment detected through the illuminance sensor with a preset threshold (S1010). As a result of the comparison, if the illuminance value of the surrounding environment is equal to or greater than the predetermined threshold value, the display device compares the sound of the surrounding environment with the predetermined threshold value through step S1030 described later.

On the other hand, if the illuminance value of the surrounding environment is less than the preset threshold, the display device changes the screen brightness of the image of the second content corresponding to the user's content switching command from the first level brightness to the second level brightness ( S1020). Here, the brightness of the second level is an output level corresponding to the brightness level of the image of the first content currently being output. Thereafter, when the sound of the surrounding environment is detected through the volume sensor, the display device compares the volume value of the detected sound of the surrounding environment with a preset threshold value (S1030). As a result of the comparison, if the volume value of the sound of the surrounding environment is less than the preset threshold value, the display device changes the audio output intensity of the second content corresponding to the user's content switching command from the first level to the second level. Change (S1040). Here, the audio output intensity of the second level is an output level corresponding to the audio output level of the first content currently being output.

Thereafter, the display device gradually changes the screen brightness and audio output intensity from the first level to the second level, and outputs video and audio for the second content corresponding to the content change command (S1050).

However, the present invention is not limited thereto, and if the illuminance value of the surrounding environment among the ambient illuminance value and the volume value detected through the illuminance sensor and the volume sensor is less than a predetermined threshold value, the display device sets the first level to the first level. The screen brightness is gradually changed to two levels to display an image of the second content corresponding to the content change command.

On the other hand, if the volume value of the sound of the surrounding environment among the detected illuminance value and the volume value of the surrounding environment is less than a predetermined threshold value, the display device gradually changes the audio output intensity from the first level to the second level to switch the content. Audio for the second content corresponding to the command is output.

Meanwhile, the display device gradually changes and outputs at least one of screen brightness and audio output intensity of the second content corresponding to the content switching command based on at least one of the surrounding environment and the output information of the first content currently being output. Prior to this, the video and audio of the second content may be analyzed.

According to an embodiment, when the illuminance value of the surrounding environment is less than a preset threshold, the display device determines whether the image brightness of the second content is less than the preset threshold based on image information of the second content corresponding to the content switching command. judge whether As a result of the determination, if the image brightness of the second content corresponding to the content switching command is equal to or greater than the preset threshold, the display device gradually changes the screen brightness from the first level to the second level as described above to display the second content. display an image for

Meanwhile, if the brightness of the image of the second content corresponding to the content switching command is less than the preset threshold, the display device may display the image of the second content while maintaining the screen brightness at the preset second level.

However, the present invention is not limited thereto, and if the image brightness of the second content corresponding to the content switching command is less than a preset threshold value, the display device sets the screen brightness corresponding to the image brightness of the second content to the image of the second content. can display.

According to another embodiment, when the volume value of the sound of the surrounding environment is less than a predetermined threshold value, the display device outputs audio of the audio of the second content based on audio information of the second content corresponding to the content switching command. It is determined whether the intensity is less than a predetermined threshold value. As a result of the determination, if the audio output intensity of the second content corresponding to the content switching command is equal to or greater than the preset threshold, the display device gradually changes the audio output intensity from the first level to the second level, as described above. and outputs audio for the second content corresponding to the content change command.

Meanwhile, if the audio output intensity of the second content corresponding to the content switching command is less than a preset threshold value, the display device may output the audio of the second content by maintaining the audio output intensity at the preset second level. there is.

However, the present invention is not limited thereto, and if the audio output intensity of the audio of the second content corresponding to the content change command is less than a preset threshold value, the display device sets the audio output intensity of the audio of the second content to the second content. Audio of content can be output.

Meanwhile, the display device may gradually change at least one of screen brightness and audio output intensity within a threshold time set by the user.

And, the above-described first level is an output level for outputting screen brightness for displaying an image of the second content corresponding to the content change command and audio output intensity for outputting the audio of the second content to a preset minimum value.

In addition, the above-described second level includes the screen brightness for displaying the image of the second content corresponding to the content change command and the audio output intensity for outputting the audio of the second content, the screen brightness and audio of the first content currently being output. This is the output level to output with the output intensity. However, the present invention is not limited thereto, and the second level determines screen brightness for displaying an image of the second content corresponding to a content change command and audio output strength for outputting the audio of the second content based on the surrounding environment. to the set output level.

On the other hand, the display device converts from the first content to the second content according to the user's content switching command, and when a user command for switching to another content within a predetermined threshold time is input, the video and audio of the third content are input. At least one of the output levels is changed to a preset first level.

That is, when a continuous channel switching command is input, the display device sets the output level of at least one of screen brightness and audio output intensity to a preset first level. Thereafter, the display device outputs at least one of video and audio of content corresponding to the last input content switching command with screen brightness or audio output intensity corresponding to the first level. Thereafter, the display device determines whether another content switching command is input within a preset threshold time. As a result of the determination, if another content switching command is not input within a preset threshold time, the display device sets the screen brightness or audio output intensity corresponding to the second preset level from the first level to the content switch command that was last input. At least one of video and audio of the content may be output. On the other hand, the control method of the display device outputting the above-described content may be implemented as a program including an executable algorithm that can be executed on a computer, and the program is stored in a non-transitory computer readable medium. can be provided.

A non-transitory readable medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and can be read by a device. Specifically, the various applications or programs described above may be stored and provided in non-transitory readable media such as CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In addition, although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

110: sensor 111: illuminance sensor
112: volume detection unit 120: input unit
121: microphone 122: control panel
123: touch input unit 130: output unit
131: display unit 132: audio output unit
140: processor 150: receiver
160: communication unit 170: signal processing unit
180: photographing unit 190: storage unit

Claims (20)

In the display device,
a sensing unit for sensing ambient light intensity;
an input unit that receives a user command for switching content from first content to second content;
output unit; and
When the user command is received, it is identified whether the illuminance value of the surrounding environment is less than a predetermined threshold value;
When the illuminance value of the surrounding environment is less than the predetermined threshold, the screen brightness of the display device displaying the second content corresponding to the user command is a first level brightness at an initial time point of a first time interval, and the first Controlling the output unit so that the brightness is at a second level at the end of a time interval and is gradually changed from the brightness at the first level to the brightness at a second level during the first time interval;
Controlling the output unit so that the screen brightness is maintained at an intermediate level between the first level brightness and the second level brightness during a second time period within the first time period;
If another user command for channel switching is not received during the second time interval, the screen brightness is the middle level brightness at the end of the second time interval and the second level brightness at the end of the first time interval. and a processor controlling the output unit to gradually change from the middle level brightness to the second level brightness. delete According to claim 1,
the sensor,
It includes; a volume detection unit for detecting the sound of the surrounding environment input through the microphone,
the processor,
If the volume value of the detected sound of the surrounding environment is less than a preset threshold, the audio output intensity of the second content is adjusted from the first level based on the audio information included in the output information of the first content. The display device characterized by controlling the output unit to output the audio of the content by changing the volume to two levels. delete According to claim 3,
the processor,
If the audio intensity of the second content is less than a predetermined threshold value based on the audio information of the second content, output the audio of the second content by maintaining the audio output intensity of the second content at the second level. A display device characterized in that for controlling the output unit. delete According to claim 3,
The first level is
An output level for outputting the audio output intensity to a preset minimum value,
The second level,
The display device, characterized in that the output level for outputting the audio output intensity as the audio output intensity of the first content. According to claim 3,
The first level is
An output level for outputting the audio output intensity to a preset minimum value,
The second level,
The display device, characterized in that the audio output intensity information preset based on the illuminance of the surrounding environment. According to claim 1 or 3,
the processor,
After switching from the first content to the second content, if a user command for switching to another content is input within a predetermined threshold time, at least one output level of video and audio of the content corresponding to the user command is input. A display device characterized by controlling the output unit to change the output to a preset first level. According to claim 1 or 3,
the processor,
When a power-on command for the display device is input, the screen brightness and audio of the content output after the power-on is output based on at least one of the illuminance of the surrounding environment and the output information of the content output before the power-on command is input. and controlling the output unit to change and output at least one of the output intensities. In the control method of the display device,
detecting the intensity of illumination of the surrounding environment;
identifying whether an illuminance value of the surrounding environment is less than a predetermined threshold value when a user command for switching content from first content to second content is input; and
When the illuminance value of the surrounding environment is less than the predetermined threshold, the screen brightness of the display device displaying the second content corresponding to the user command is a first level brightness at an initial time point of a first time interval, and the first Controlling the screen brightness of the display device so that the brightness is at the second level at the end of the time interval and is gradually changed from the brightness at the first level to the brightness at the second level during the first time interval,
The step of controlling the screen brightness of the display device,
controlling the screen brightness of the display device so that the screen brightness is maintained at an intermediate level between the first level brightness and the second level brightness during a second time period within the first time period; and
If another user command for channel switching is not received during the second time interval, the screen brightness is the middle level brightness at the end of the second time interval and the second level brightness at the end of the first time interval. and controlling the screen brightness of the display device to gradually change from the middle level brightness to the second level brightness. delete According to claim 11,
detecting sounds in the surrounding environment; and
The changing step is
If the volume value of the detected sound of the surrounding environment is less than a predetermined threshold, the audio output intensity of the second content is adjusted from the first level based on the audio information included in the output information of the first content. The control method further comprising the step of changing the volume to two levels. delete According to claim 13,
The changing step is
and maintaining the audio output intensity at the second level when the audio intensity of the second content is less than a predetermined threshold based on the audio information of the second content. delete According to claim 13,
The first level is
An output level for outputting the audio output intensity to a preset minimum value,
The second level,
and an output level for outputting the audio output intensity as the audio output intensity of the first content. According to claim 13,
The first level is
An output level for outputting the audio output intensity to a preset minimum value,
The second level,
The control method characterized in that the audio output intensity information is preset based on the illuminance of the surrounding environment. According to claim 11 or 13,
After switching from the first content to the second content, if a user command for switching to another content is input within a predetermined threshold time, at least one output level of video and audio of the content corresponding to the user command is input. The control method characterized in that it further comprises; step of changing to a predetermined first level. According to claim 11 or 13,
receiving a power-on command for the display device; and
When the power-on command is input, at least one of screen brightness and audio output intensity of content output after power-on based on at least one of the surrounding environment state and output information of content output before the power-on command is input. A control method further comprising;

Images